Here is the nutrition information for leeks, the last in the series on bulb vegetables.
I am including some of the available information on USDA and Wikipedia. Also, I did some rounding. I am including the items normally listed on the Nutrition Facts Label on food products.
Nutritional Value per 100 g (3.5 oz) of Raw Leeks
Calories:Â Â Â Â Â Â Â Â 61
Fat:Â Â Â Â Â Â Â Â Â Â Â Â Â 0.3 g
Sodium:        20.0 mg   1%
Carbohydrates:Â Â 14.2 g
Sugars:Â Â Â Â Â Â Â Â Â 3.9 g
Dietary Fiber:Â Â Â Â 1.8 g
Protein:Â Â Â Â Â Â Â Â Â 1.5 g
Vitamin C:      12.0 mg   14%  – normally the nutrition facts label includes vitamin D
Calcium:       59.0 mg    6%
Iron:           2.1 mg    16%
Potassium:     180.0 mg    4%
Water         83.0 g
The percentages above tell you how much a nutrient in a serving of food contributes to a daily diet of 2,000 calories.
Previously shared the nutrition information for shallots with you.
